drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in AccountsService
Name: |
Mehrere Probleme in AccountsService |
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ID: |
USN-4616-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 20.10 |
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Datum: |
Di, 3. November 2020, 21:11 |
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Referenzen: |
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16126
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16127
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-14036 |
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Applikationen: |
AccountsService |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-4616-1 November 03, 2020
accountsservice vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.10 - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS
Summary:
Several security issues were fixed in AccountsService.
Software Description: - accountsservice: query and manipulate user account information
Details:
Kevin Backhouse discovered that AccountsService incorrectly dropped privileges. A local user could possibly use this issue to cause AccountsService to crash or hang, resulting in a denial of service. (CVE-2020-16126)
Kevin Backhouse discovered that AccountsService incorrectly handled reading .pam_environment files. A local user could possibly use this issue to cause AccountsService to crash or hang, resulting in a denial of service. This issue only affected Ubuntu 20.04 LTS and Ubuntu 20.10. (CVE-2020-16127)
Matthias Gerstner discovered that AccountsService incorrectly handled certain path checks. A local attacker could possibly use this issue to read arbitrary files. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2018-14036)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 20.10: accountsservice 0.6.55-0ubuntu13.2 libaccountsservice0 0.6.55-0ubuntu13.2
Ubuntu 20.04 LTS: accountsservice 0.6.55-0ubuntu12~20.04.4 libaccountsservice0 0.6.55-0ubuntu12~20.04.4
Ubuntu 18.04 LTS: accountsservice 0.6.45-1ubuntu1.3 libaccountsservice0 0.6.45-1ubuntu1.3
Ubuntu 16.04 LTS: accountsservice 0.6.40-2ubuntu11.6 libaccountsservice0 0.6.40-2ubuntu11.6
After a standard system update you need to reboot your computer to make all the necessary changes.
References: https://usn.ubuntu.com/4616-1 CVE-2018-14036, CVE-2020-16126, CVE-2020-16127
Package Information: https://launchpad.net/ubuntu/+source/accountsservice/0.6.55-0ubuntu13.2 https://launchpad.net/ubuntu/+source/accountsservice/0.6.55-0ubuntu12~20.04.4 https://launchpad.net/ubuntu/+source/accountsservice/0.6.45-1ubuntu1.3 https://launchpad.net/ubuntu/+source/accountsservice/0.6.40-2ubuntu11.6
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